of andebson



Aug. 16, 1932. H E Nom/.EL 1,871,858

SWITCH Filed April 8. 1929 gmc/YM @yg 6 /03 /g W Patented Aug. 1.6 1932UNITED STATES PATENT OFFICE HARRY E. NoRvIEL, or ANDERSDN,INDIANA,VAssIGNoR To DELoo-REMY coRPoRA- y TIoN, or ANDERsoN, IND-IANA, AcoRPoRA'rIoN 0E DELAWARE SWITCH Appncation filed Aprn s, 1929. serialNo. 353,311.

This invention relates to electric switches in combination with anignition coil, and one of the objects is to provide a novel and simplemeans of controlling the circuits through the ignition coil in conjunction'with certain registering or indicating circuits so that a keycontrolled device will simultaneously operate to open and close all ofthe circuits and to secure them in open relation.`

A further object of the invention is to provide a unit of structurewhich includes in addition to the key controlled means for securing theignition circuit in open position, meansfor opening and closing thecircuit of an electricalregister and coincidentally securing the same inopen relation with the ignition circuit.

In the present invention these aims are accomplished by providing anelectric switch in which a movable contact element is a leaf springconductor fixed at an intermediate point to one of the ignitionterminals of the coil and having the bowed free ends thereof adapted toengage a convex surface provided by suitable stationary contacts. Amovable actuating member presses each end of the contact blade againstthe stationary contacts, one of which is a second ignition contact andthe other a contact of said register circuit.

Further objects and advantages of the pres ent invention will bebeapparent from. the following description, reference being had to theaccompanying drawing wherein a preferred embodiment'of one form ofthe'present invention is clearly shown.

In the drawing:

Fig. l is a longitudinal section through a switch and coil unitembodying my invention, and is a view substantially along the line andin the direction of the arrows 1-l of Fig. 3.

Fig. 2 is a rear view of the unit as indicated by the arrow 2 of Fig. l.

Fig. 3 is a sectional view through the switch mechanism of the unitsubstantially as indicated by the line and arrows 3-3 of Fig. l.

Fig. 4 is a front view of the unit as indicated by the arrow 4 of Fig.l, the dial plate and bezel ring being removed and the unit beingrotated substantially through an angle of 90.

Fig.,` 5 is a longitudinal sectional view through the contact actuatorassembly, ,sube stantially as indicated by the line and arrows 5--5 ofFig.l l.

Fig. 6 is a diagrammatic view of the elecptrical circuit through myimproved switch and coil unit. With particular references to thedrawing, 2O indicates a case enclosing an ignition coil and is attachedtoa sleeve 21 secured to a mounting lbracket 22, which sleeve 2l has aninteriitting relation with a metallic end wall or frame member 23completing a switch housing and supporting a key controlled actuator fora switch mechanism later to be described. The case is lianged at 24 toreceive a nonconducting member 25, forming a switch base and providingan end wall of the ignition coil housing. The non-conducting member 25is provided witlr, a skirt 26 positioning a block 27 centrally recessedat 28 within which is received one end of a core 29. About the core aresuperimposed a secondary winding 30, and a primary winding 3l the otherend of the core 29 being supported by a skirt 32 of the coil cap 33which is secured to the case 20 lby an interlocking joint 34. Within thecase 20 and about the coil windings there is provided a magnetic winding35 which is grounded to the case 2O in the usual manner. i

The coil cap 33 is of molded formation and secures within the bodythereof a high tension terminal which has connection by a pin 4l withthe core 29 of the coil and thence to the inside turn'of the secondarywinding. The cap also moldably secures a battery terminal post 42, a gasgage terminal 43 and a timer terminal 44, which have appropriateconnections to and through the ignition coil to complementary terminalmembersmoldably secured to the member 25. The nonconducting member 25supports terminal members 50, 5l and 52 which form the elements of aswitch mechanism as will presently appear. The member is connectedbyawire 53 with the gas gage terminal 43 while theterminal member 5l isconnected by a lead 54 with the terminal post 42 and the terminal member52 by a wire 55 to the insidelead of the primary and the outside of thesecondary, and from thence by way of the primary 31 and outside lead 56thereof to the post 44, and also from thence by way of the secondarywindings to the core 29.

To the terminal member 51 there is secured an arc. shapedy spring leafcontact blade 60 which is crimped into a rather sinuous formation asshown in Fig. l, so that the concave free ends 61 and 62 lieV over theterminalmembers 50 andvv 52f-respectively, but are normally spacedtherefrom or out of contact therewith.

The frame member 23 supports a key cylinder 65 carrying bolts 66 whichcooperate with al key 67 to permit the key cylinder 65 to be rotated'Within the frame. A stop post 68 formed upon theframe member 23 adjacentthe inner end of the key cylinder 65 acts as alstop.v and deiines'thelimits of rotation of the cylinder. To the inner end of the key cylinder65 is secured a contact actuator mechan ism by screws 69 driven 'througha nonconducting ratchet plate 70 and al supporting plate 7l. rlhe plates70 and 71 are somewhat arcor crescent shaped as exhibited in Fig. 3,and.' provide arms 72 and 73, which in assembled relationv cooperatewith the contact arms 6l and 62 to complete the circuits throughthemember 51 and the members 50 and 52;. The arms of the member 70 areof such dimension that junctures- 74 and 75 operateA as stops-inconjunction with the post 68 to. limit the rotary movement of thecontact actuator. The intermediate portion of the members 7 Oand 71 areapertured at 76 and 77 to provide detent recesses to cooperate with thespring 78 and ratchet balll 7 9 secured withinthe frame member 23temporarily retainingthe actuator device in the actuated positionv towhich it may be moved.

When the frame andy contact actuator assembly are assembled with thesleeve 21, the tangs 80 of the said sleeve are bent into recesses 81about the periphery of the the frame 23 and the switch actuating arms 72and 73 are. disposed `in a relative position exhibited in Fig. 3, in.which the switchv parts are arranged in the ofi:z position. A face plateand a dial plate 91 are then placed over the frame. 23 and. securedv byscrews 93 and iini'shed oif by bezel'ring 94.

lThe unit herein. above described is complete. in itself and is adaptedfor mounting 'uponz any substantial partv of the vehicle structure afterwhich the high tension terminal'. 40 may be connected with the usualdistributor 100, the terminal post 42 with the battery 101 and thencegrounded at 102, the terminal 43 is then connected with the gasgageI103V by a conductor 104 and thence grounded. at 105, and the terminal 44is connected; tofthe timer 106, thence to the ground 107 as .illustratedin Fig. 6.

YVlieneverk the switch is manipulatedi to open or close the variouscircuits, the contact elements 61 and 62 are caused to rub over therespective terminal members 50 and 52 by reason of the arms 72 and 73.In forcing the elements 6l and 62 into engagement with the contacts 50and 52, the arms 7 2 and 7 3 williron out the concave bends 61 and 62and in doing so will cause the free ends of the member 60 to slide overthe convex parts 50 and 52. It is to bel noted that the terminal 51formsl a common terminal with the coil circuit through the terminal 52and with the registering circuit through the terminal 50, and that-whenthe. plate 70 is rotated that these circuits are opened and closedcoincidentally. Closing' ofthe coil circuit thereby establishes a closedregistering circuit `by' which the indicia may be read oif. Since theregistering circuit functions only when the coil circuity functions,danger of battery depletion is reduced to a minimum, for when thecoilcircuit is opened the registering circuit is likewise opened thus beingno drag upon the battery while the vehicle is at rest.

While the form of embodiment of the present invention as hereindisclosed, constitutes a preferred form, it is to be understood thatother forms might be adopted, all coming within the scopeof the claimswhich follow.

What is claimed is as follows: 1. A switch comprising threeterminalsarranged in a row, a spring metal' conductor attached intermediate itsends tothe center terminal, and having its free ends located so as ltoengage respectively the other terminals, and means for causing the ends'of the spring conductor to simultaneously engage said other terminals,said means comprising a movable member having blades so constructed andarranged that, when the movable member is inthe off position, one of theblades will be positioned intermediate the ends of the spring conductorandthe other blade will be located beyond the end of said springconductor.

2. A switch comprising three terminals arranged in a circular row, aspring metal conductor attached intermediate its ends to the centerterminal, and having its free ends located so as to engage respectivelythe other terminals, and means for causing theends of thev springconductor to simultaneously engage said other terminals, said meanscomprising a rotatable member having blades pivotedI at the axis of saidcircular row of contacts, and so arranged that, when the movable memberis in the off position, one Vof the blades will be positionedintermediate the ends of the spring conductor and the other blade willvbe located beyond the end of saidl spring conductor.

3. A switch comprising threeterminals arrangedv in a circular row,aspring metal conductor attached intermediate its ends to the centerterminal, and having its free ends located so as to engage respectivelythe other terminals, and means for causing the ends of the springconductor to simultaneously engage said other terminals, said meanscomprising a rotatable shaft journalled for rotation at the axis of saidcircular row of contacts, and a switch actuator carried by the shafthaving blades so constructed and arranged that, when the actuator is inthe off position, one of the blades will be positioned intermediate theends of the spring conductor and the other blade Will be located beyondthe end of the spring conductor, said spring conductor being arc-shapedand substantially concentricy with the shaft.

In testimony whereof I hereto affix my signature.

HARRY E. NORVIEL.

